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Trigonometry Final Exam Answers for Math 141-142, Fall 1999, Exams of Trigonometry

University of AllahabadTrigonometry

The answers to the trigonometry final exam for math 141-142, which was held in fall 1999. The exam covers various trigonometric identities, functions, and calculations.

Typology: Exams

2012/2013

Uploaded on 02/21/2013

radheya
radheya 🇮🇳

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Math 141-142
Fall 1999
Trigonometry Final Exam Answers
1. −√3
2. 3
2
3. 39◦
4. 553 feet
5. c
6. 2
√5
7. b
8. 1.23, 4.37
9. a=−4, B=2π
1.5
10. 4
5
11. c
12. 2π
3,4π
3
13. −33
65
14.
sec xcsc x
2 cot x−sec xcsc x=
1
cos xsin x
2 cos x
sin x−1
cos xsin x
=
1
cos xsin x
2 cos2x−1
cos xsin x
=1
2 cos2x−1=1
cos 2x= sec 2x
15. 70 feet
16. 180◦

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Math 141- Fall 1999 Trigonometry Final Exam Answers

  1. −√ 3
  2. (^32)
  3. 39◦
  4. 553 feet
  5. c
  6. √^25
  7. b
  8. 1.23, 4.
  9. a = −4, B = 12 π. 5
  10. (^45)
  11. c
  12. 23 π , 43 π
  13. − (^3365)
  14. sec x csc x 2 cot x − sec x csc x =

cos x^1 sin x 2 cos sin x x − (^) cos x (^1) sin x^ = cos x^1 sin x 2 coscos x^2 sinx− x 1 =^

2 cos^2 x − 1 =^

cos 2x = sec 2x

  1. 70 feet
  2. 180◦